Question

what type of succession is the slowest and occurs when all soil has been removed by a significant event and has to be rebuilt?
eutrophic succession
tertiary succession
primary succession

Explanation:

Primary succession occurs in lifeless areas where soil has been removed (e.g., after a volcanic eruption). It starts with pioneer species (like lichens) breaking down rock to form soil. This process is slow as it builds soil from scratch. Eutrophic succession relates to nutrient - rich water bodies. Tertiary succession is not a standard ecological succession type. So, the answer is primary succession.

Answer:

C. primary succession